Meaning of PHERESIS

WordNet Dictionary
	Definition:		[n]  a procedure in which blood is drawn and separated into its components by dialysis; some are retained and the rest are returned to the donor by transfusion
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	Synonyms:		apheresis
	See Also:		dialysis, plasmapheresis, plateletpheresis
Medical Dictionary
	Definition:		A procedure in which blood is collected, part of the blood such as platelets or white blood cells is taken out, and the rest of the blood is returned to the donor. Also called apheresis.
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